Astronomy Is Written For Astronomers

For It Is The Duty Of An Astronomer To Compose The History Of The Celestial Motions Through Careful And Expert Study.

So, Influenced By These Advisors And This Hope, I Have At Length Allowed My Friends To Publish The Work, As They Had Long Besought Me To Do.

In The Midst Of All Dwells The Sun. For Who Could Set This Luminary In Another Or Better Place In This Most Glorious Temple, Than Whence He Can At One And The Same Time Brighten The Whole.

More Stars In The North Are Seen Not To Set, While In The South Certain Stars Are No Longer Seen To Rise.

So Far As Hypotheses Are Concerned, Let No One Expect Anything Certain From Astronomy, Which Cannot Furnish It, Lest He Accept As The Truth Ideas Conceived For Another Purpose, And Depart From This Study A Greater Fool Than When He Entered It.